Watercolour painting of Ananas (pineapple). Plant Kingdom, Pineapple with variegated leaves and fruit, December 1798 from the garden of my [Joseph van Huerne's] wife, in Averloo. In Batavia, on the island of Java, the pineapples are so cheap that they are sold in bunches at the market. The troops use them to clean the rust from their weapons, as the acid helps protect them'